Best Fiber Laxatives in 2026

Original prescription strength: MiraLAX provides effective, predictable constipation relief

Unblocks your system naturally: MiraLAX (PEG 3350) works with the water in your body to hydrate, soften, and ease stool through the colon

No harsh side effects: Relieve constipation without causing cramping, bloating, sudden urgency, and gas. Health Concern: Constipation

ACTIVE INGREDIENT: The active ingredient of this osmotic laxative is Polyethylene Glycol 3350; compare to MiraLAX active ingredient

CONSTIPATION RELIEF: Relieves occasional constipation/irregularity; generally produces a bowel movement in 1 to 3 days

DOCTOR RECOMMENDED ACTIVE INGREDIENT: Polyethylene Glycol 3350 is the Number One Doctor Recommended Laxative Active Ingredient (of U.S. physicians surveyed by an independent market research firm, excluding Therapeutic Fiber and Stool Softeners)

ACTIVE INGREDIENT: The active ingredient of this osmotic laxative is Polyethylene Glycol 3350. Compare to MiraLAX active ingredient

OSMOTIC LAXATIVE: GoodSense ClearLax Polyethylene Glycol 3350 Powder for Solution acts as a laxative used to relieve occasional constipation/irregularity. The laxative generally produces a bowel movement in 1 to 3 days

RELIEF FOR IRREGULARITY: GoodSense ClearLax Polyethylene Glycol 3350 Powder for Solution increases frequency of bowel movements and softens the stool; relieves occasional constipation (irregularity).

Includes: One (1) 60-count pack of individually wrapped Dulcolax Soft Chews Mixed Berry

Fast relief: Dulcolax Soft Chews provide relief from constipation in as little as 30 minutes

Stimulant free: This laxative soft chew works naturally with your body for gentle constipation relief

Take before bedtime

Laxative made of natural Senna leaves; contains 150 tablets

Works in just 8 to 12 hours

Each tablet contains 15 mg of sennosides B

Helps restore the natural balance in the intestines

Gentle enough for everyday use

Value size!

100% NON-ALLERGENIC: Get reliable constipation relief with Rite Aid Fiber Therapy caplets. Containing methylcellulose 500mg, 100% soluble fiber for regularity, our gentle and gluten free formula is safe for those with gluten sensitivities or allergies.

GENTLE & EFFECTIVE: Helps restore and maintain regularity, relieves constipation (irregularity), ideal for constipation associated with other bowel disorders like IBS when recommended by a doctor, and generally produces a bowel movement in 12-72 hours.

100% SOLUBLE FIBER: Rite Aid fiber supplements for women and men are formulated with 100% soluble fiber and are non-fermentable, meaning they won’t contribute to bloating and gas. Compare Rite Aid fiber to the active ingredients in top national brands.

Citrucel caplets contain fiber for irregularity that won’t cause excess gas based on laboratory testing, individual results may vary

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Citrucel is clinically proven effective to help relieve occasional constipation

Phillips' Laxative Caplets are a convenient, easy to swallow laxative supplement that works with the body's natural process to gently relieve occasional constipation

Formulated with Magnesium Oxide, Phillips' Laxative Caplets offer gradual, cramp free, gentle relief of occasional constipation

Does not contain harsh stimulants, helping you get back to regular with comfortable relief

maintain regularity

relieve constipation

generally produces

NEW 3-in-1 Benefits: Bowel Mover + Gentle Laxative + Stool Softener

All-Natural: 100% plant-based. Vegan

The only 3-in-1 Bowel Mover and Cleanser. Powerfully promotes regular, healthy and complete bowel movements

Contains one; 60-count bottle of Senokot Dietary Supplement Laxative Gummies for occasional constipation relief

Easy relief ; the gummy way; for occasional constipation relief

Chewable dietary supplement gummy in a great-testing ; mixed berry flavor; with other natural flavors

Natural solution made out of prunes and Senna leaves

Works in just 8 to 12 hours

Each tsp contains 30 mg of sennosides B

Great taste and clinically proven effective

A smooth, non-gritty therapeutic fiber derived from a natural source

Doctor recommended for restoring and maintaining regularity

STOOL SOFTENER + LAXATIVE: Rite Aid’s Rite Aid P Col-Rite Stool Softener with Laxative tablets are formulated to offer gentle, dependable overnight relief from occasional constipation (irregularity); and generally produce a bowel movement in 6-12 hours.

GENTLE & EFFECTIVE LAXATIVE: Get reliable occasional constipation relief with Rite Aid Docusate Sodium & Sennosides stool softeners tablets. This stool softener plus stimulant laxative prevents irregularity while delivering gentle and effective relief.

COMPLETE RELIEF: Works efficiently to relieve uncomfortable constipation symptoms. No matter what causes your constipation, Rite Aid's here to help. Rite Aid’s stimulant laxative + stool softeners work gently to provide comfortable and effective relief.

INCLUDES: One (1) 15-count pack of individually wrapped Dulcolax Kids Soft Chews, watermelon flavor

FAST RELIEF: Dulcolax Kids Soft Chews provide fast relief from constipation in as little as 30 minutes

WATERMELON FLAVOR: New Dulcolax Soft Chews Kids come in a great-tasting watermelon flavor that is kid-approved

MAXIMUM STRENGTH: Rite Aid’s Maximum Strength Laxative tablets are formulated to relieve occasional constipation (irregularity) and generally produce a bowel movement overnight in 6-12 hours. Compare to the active ingredient in top national brands.

GENTLE & EFFECTIVE LAXATIVE: Get reliable, occasional constipation relief with Rite Aid Laxative. Containing Sennosides USP, 25 mg, this stimulant laxative works overnight to prevent irregularity and constipation and delivers gentle and effective relief.

OVERNIGHT COMPLETE RELIEF: Works overnight to relieve uncomfortable constipation symptoms. No matter what causes your constipation, Rite Aid's here to help. Rite Aid’s Sennosides laxative extra strength generally produce bowel movements in 6-12 hours.

Natural vegetable laxative derived from the Senna plant.

Provides gentle, overnight relief from occasional constipation.

Usually produces a bowel movement in 6-12 hours.

100% PSYLLIUM FIBER SUPPLEMENT: Adding soluble fiber, like psyllium husk fiber found in Hydrocil,

NATURAL PSYLLIUM FIBER: The psyllium husk fiber in Hydrocil dissolves quickly for easy mixing

EASY TO USE: Hydrocil Dietary Fiber Supplement dissolves easily in water & contains no sweeteners or artificial colors. Adding fiber to your diet may help support normal digestion & weight management

Combat Constipation - Clinically-proven ingredients work to ease constipation for more satisfying number twos.

Maintain Movement - Keep your bowels active and your digestion running smoothly with gut-friendly herbs and fiber.

Softer Stools - Contains natural laxatives to make bowel movements softer and easier to pass.

Find relief when struggling with occasional constipation with the help of Sunmark's fiber laxative caplets

Daily source of 100% soluble fiber; helps restore and maintain regularity

These bulk-forming laxative caplets offer the fiber you're looking for without the excess gas

DIGESTIVE DETOX: Intestinal Tune-Up is a natural intestinal cleanse, bowel detox and colon cleanser formulated to remove hardened and undigested matter and toxins from the digestive system.

HERBAL LAXATIVES: Organic nourishment and fiber support healing and regulation of the intestinal tract, for gentle, effective and natural constipation relief. (Not suitable for severe constipation).

NATURAL BLEND: Made with organically sourced psyllium seed, cascara sagrada, capsicum, garlic, and more, the natural laxatives’ constipation relief comes from a powerful herbal formulation.

MAXIMUM STRENGTH: Rite Aid’s Maximum Strength Laxative tablets are formulated to relieve occasional constipation (irregularity) and generally produce a bowel movement overnight in 6-12 hours. Compare to the active ingredient in top national brands.

OVERNIGHT COMPLETE RELIEF: Works overnight to relieve uncomfortable constipation symptoms. No matter what causes your constipation, Rite Aid's here to help. Rite Aid’s Sennosides laxative extra strength generally produce bowel movements in 6-12 hours.

EASY-TO-SWALLOW TABLETS: Each tablet provides you with gentle and effective relief of occasional constipation in a coated, easy-to-swallow pill. For gentle, dependable relief from occasional irregularity to make going an easier, less painful process.

*Compare to the same active ingredients in FiberCon at a third of the price & Save!!*

3 pack

Treats Occasional Constipation, Restores Regularity

Daily Source of Soluble Fiber, Fiber Supplement Laxative

Natural Vegetable Bulk Forming Laxative

All Natural Herbal Intestinal Tonifier supporting Proper Elimination

Vegan, Non-GMO, Gluten Free, Colon Cleanser, Daily Fiber Supplement for Gut Health & Regularity

Toddler potty problems? Tired of seeing your child in pain? Put an end to the discomfort with PottyWise liquid Stool Softener. This natural laxative can also be used as Gas Relief for Adults and constipation relief for adults. PottyWise can be used by the whole family.

PottyWise natural laxative is made with fresh herbs. To mask the earthy taste, mix with food or drink. Just shake and take 1 dropper (1 dropper = 1 squeeze) 1-4 times a day, based on the dosage chart.

Keep Things Moving — Lack of adequate fiber in your diet can lead to constipation, digestive discomfort, and more. Help your child stay healthy and regular with this fiber gummies kids supplement. Each serving of our kids fiber gummies for constipation contains about 5mg of natural fiber for kids and toddlers. Keep your little one on a regular bathroom cycle and ease constipation and indigestion with these child and toddler fiber gummies

Fiber-Lax laxative from Rugby

Bulk forming laxative

Compare to active ingredient in Fibercon

Function Medicine Approach - Root Cause of Symptoms - Our Goal is to give you the vitamins you may deficient in with Irritable Bowel Syndrome. We give you the vitamins that focus on the root cause of IBS rather than just "band-aiding" them

Affordable IBS Relief: Been to a pricey doctor who said you have IBS (irritable bowel syndrome) and there's not much you can do? Maybe the doctor told you to add fiber, go on a limited diet, or never eat out again (aka FODMAP). Get the digestive comfort and support you need. Formulated with digestive aids and naturally occurring superfoods, this all-natural supplement to support digestive distress issues including gas, bloating, diarrhea and constipation costs less than $1 a day!

Highest Quality and Satisfaction Guarantee – Our thyroid support complex is formulated in an FDA Registered facility following strict GMP standards. It’s Non-GMO, Gluten Free, Soy Free, Vegetarian Friendly, Third Party Tested, Lab Verified, and made in the USA. If you’re not completely satisfied with our thyroid supplement, we offer a hassle-free 60-day money back guarantee.